How can I recognize a “richer color” version bulbs?

Richer color bulb can be recognized by its white base or, in case of BR30 the version supporting richer colors doesn’t have the grey rim. When you want to purchase hue bulbs online or offline the packaging has a round green label with the text ‘richer colors’ in the top right corner. Richer colors means that the bulbs have deeper green and blue, which have a consistency with the Philips Hue Go and the Philips Hue Lightstrip Plus.